.board {
  display: inline-block;
  border: 4px solid #3a4a5a;
  border-radius: 12px;
  background: #e6e9ef;
  margin: 18px 0;
  box-shadow: 0 2px 12px rgba(60,80,120,0.08);
}
.board-row {
  display: flex;
}
.board-cell {
  width: 48px;
  height: 48px;
  border: 1.5px solid #b0b8c0;
  background: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  position: relative;
  transition: background 0.2s, box-shadow 0.2s;
  cursor: pointer;
}
.board-cell.selected {
  box-shadow: 0 0 0 3px #4f8cff inset;
  background: #e0f0ff;
}
.board-cell.movable {
  box-shadow: 0 0 0 3px #4caf50 inset;
  background: #e8f5e9;
}
.board-cell.den {
  background: #ffe6e6;
}
.board-cell.trap {
  background: #fffbe6;
}
.board-cell.river {
  background: #b3e5fc;
}
.terrain-icon {
  font-size: 1.2rem;
  color: #888;
  pointer-events: none;
}
@media (max-width: 600px) {
  .board-cell {
    width: 32px;
    height: 32px;
    font-size: 1.1rem;
  }
} 